Valve mechanism



July 25, 1933- L. J. BERKELEY 1,919,973

VALVE MECHANI SM Filed April 14, 1930 \s a s m l ig,

R ATTORNEY 35 of; the assembling pilot;

Patented July' A25, 1933 .LAURENCE arinxnmivgor cLiivELAiviioHio;

viugvii, lM "ECHANIsi/i application' mea Aprii 1'4,

rThis invention 'relates Ito valve mechanismssuch as are -used for controlling/the flow of iuids, including water, `steam`,vcomf pressed air" or other'fgases, or indeed, any

'5 fluid medium. v f

The'objects ofthe presentinvention are generally to improve the valve r constructionand more particularly toi provide a simple and improved arrangement whichV permits accurate grinding or surfacing of thelrelaf n tively rotatable seatl parts and insuresland maintains close and accurate contact` ,bc-y tween them without leakage during operation; to'provide a simple and improved driving connection between -the' rotatable valve-member and its driverbywhich the valve is self-accommodatingto its Lseat and is k'maintained in .properg'working Vrelation therewith; `and finally, to provide y .ian im proved valve i arrangement with thefparts itted to "receive pilot AforX convenienti-assembly of the. valve? parts \during,manufac ture.y i f n Other objects 'of the invention are fin .part

obvious and in partgwilliappear YmoreA in detail hereinafter.-"` i n i t vInrthe drawing, which represents `one suitableembodimentofthe invention, F ig. "leis a plan view ;A Fig:l 2ais abside elevation; Fig.

- "130 3 is abottom view; Figs Lifisl asecti'onal thje linee- 4, Fig. 1; Fig. 5y isI a `sectional plan `view.E on' the line 5.-5, Fig. 4;"Fig. 6 isr a detail'sectional` view, corresponding to Fig/4 and illustratingvuse Figs-'7 `andy 8 are correspondingk sectional views of the casing and vhandle respectively; Fig.k 9is a bottom plan view of the coupling; and Fig. 1O-1sa side elevationthereof. The valve showny in the'. drawingcomprises a suitable Lbodyinember y.or basel, which may be-'a castingy suitably cored out and .machined to` provide any.y necessary ;or suitable ports; and pass'ages-therein; It may elevation. o n

45 be of any suitable shape, such as square,

hexagonal, or the like, but is shown as generally round in plan view, with its upper face flat exceptforashallow upwardly projecting boss2, Fig;V 6, lof circularform and the-upper surface of which formsY the valve ieao'.` "seriai nog. 444,115.

seat. number of. ports and passages, vaccordingtoY the vparticularuse for which it isdesigned, but in the arrangement shown isprovided Said body mayl have any lsuitable with. two passages 3, lfcoinmunicating with' 5 ports 5, 6 in the valve seat, said passages being suitably fitted orfconnection to-"con-` duits or `the like, such as-by provision fof the threads at l7. `U pon ,the body is-fmounted ashell or casing 8', vof hollowlformpprovided with an inner chamber 9, Vtheluppe'rportion of saidshell having an upwardly extending cylindrical lboss-.10 which forms va bearing aroundwhich turns the'operating' handle 11 provided withra driving cross bar ,12, `in thevparticul'ar `iorm shown. Said upward extension is lprovided with a through 'opens ing l'iin which rotates: the valve driver-14.y of shaft vformr'provided at its upperend, with a cross or screw Vdriverslot 15 to receive the drivingfbar'lQ, `and atifitsllower end havingfa tapered or conical portion 16, the conical surface ofwhich iszgroundrto=it `a corresponding seat; at 17 .in thevalve shell, forfthe purposeof `preventing leakage -ci? fluid pressure to thez Aoutside .of fthe `casing through the driver connection." Ther-'valve member is shown at 18;'It is of disc .form with `la `fiat lower -`ground surface :resting upon and accurately iitting the valve seat of the bodygfzlnthe particular arrangementy shown, said valve member is provided on' its. under surfacewith a passage -19e`xtendingrabout half Away around the peripherycand adapted in onepositionof` the valve to establish L communication between ports 5 andv 670i the valve body. u; It is also-provided 'with ag-through slot 19m adapted :to be moved into registration witheither of the ports-5,' 6 to establish` communicationil from the. chamber 9lto eitheroffthe passages 3 and 4. p

a Said valve member issuitably arranged tobe more or .less selfeaccommodating to its seat so asto maintain-.a rclose fit and seal therewith regardless; of f matters `of aline'-` ment andl tightness .of assembly of the casing parts. Saidcasing partsrmeet along'the surfaces 20 where-a gasket is usually inserted, and they: are held together by the clamp'- driver,

and rotate upon said surface, said valve `bodj)7 and member being provided with alined through openings, a driver extending through the housing and alined with 4said openings and provided With attaching means, a tubular connector between said driver and valve member having lits borev also alined With said opening, whereby a pilot member may be introduced through thek member' recesses provided in said driver to permit lateral movement of said driver relative to said connector, and a spring housed within said tubular connector for holding said' valve member to its seat.

4. Valvemechanism, comprising a valve bodT provided with a valve seat, a 'valve member mounted to rotate upon said seat, a driver for rotating said member, a tubular connector having driving teats at one end engagingpinlateral recesses in said valve member to permit lateral movement of said `member, 1n one direction relative to said connector, and teats at the opposite end engaging in lateral recesses provided in saidV driver and disposed at "right angles to the irst mentioned teats to permit lateral` movement of said driver relative to said connector ina direction at right angles to the iirst mentioned direction.

LAURENCE, J. BERKELEY. 

